include/lttng/types.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
   2  *
   3  * lttng/types.h
   4  *
   5  * LTTng types.
   6  *
   7  * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   8  */
   9
  10 /*
  11  * Protect against multiple inclusion of structure declarations, but run the
  12  * stages below each time.
  13  */
  14 #ifndef _LTTNG_PROBES_LTTNG_TYPES_H
  15 #define _LTTNG_PROBES_LTTNG_TYPES_H
  16
  17 #include <linux/seq_file.h>
  18 #include <lttng/events.h>
  19 #include <lttng/tracer.h>
  20 #include <lttng/endian.h>
  21
  22 #endif /* _LTTNG_PROBES_LTTNG_TYPES_H */
  23
  24 #undef PARAMS
  25 #define PARAMS(args...)         args
  26
  27 /* Export enumerations */
  28
  29 #ifdef STAGE_EXPORT_ENUMS
  30
  31 #undef TRACE_EVENT_TYPE
  32 #define TRACE_EVENT_TYPE(_name, _abstract_type, args...)
  33
  34 #undef TRACE_EVENT_ENUM
  35 #define TRACE_EVENT_ENUM(_name, _entries...)                            \
  36         const struct lttng_kernel_enum_entry __trace_event_enum_##_name[] = {   \
  37                 PARAMS(_entries)                                        \
  38         };
  39
  40 /* Enumeration entry (single value) */
  41 #undef V
  42 #define V(_string)              { _string, _string, #_string}
  43
  44 /* Enumeration entry (range) */
  45 #undef R
  46 #define R(_string, _range_start, _range_end)                            \
  47         { _range_start, _range_end, #_string }
  48
  49 #endif /* STAGE_EXPORT_ENUMS */
  50
  51
  52 /* Export named types */
  53
  54 #ifdef STAGE_EXPORT_TYPES
  55
  56 #undef TRACE_EVENT_TYPE___enum
  57 #define TRACE_EVENT_TYPE___enum(_name, _container_type)                 \
  58                 {                                                       \
  59                   .name = #_name,                                       \
  60                   .container_type = __type_integer(_container_type, 0, 0, -1, __BYTE_ORDER, 10, none), \
  61                   .entries = __trace_event_enum_##_name, \
  62                   .len = ARRAY_SIZE(__trace_event_enum_##_name), \
  63                 },
  64
  65 /* Local declaration */
  66 #undef TRACE_EVENT_TYPE
  67 #define TRACE_EVENT_TYPE(_name, _abstract_type, args...)        \
  68                 TRACE_EVENT_TYPE___##_abstract_type(_name, args)
  69
  70 #undef TRACE_EVENT_ENUM
  71 #define TRACE_EVENT_ENUM(_name, _entries...)
  72
  73 #endif /* STAGE_EXPORT_TYPES */